Three-way dumping body construction



Oct. 18, 1932. ET 1,883,474

THREE-WAY DUMPING BODY CONSTRUCTION Filed Nov. 5. 1929 v 2 Sheets-Sheet 1 E. R. BARRETT Oct. 18,1932.

THREE-WAY DUMPING BODY CONSTRUCTION 2 Sheets-Sheet 2 Filed Nov. 5, 1929 Patented Oct. 18, 1932 UNITED IVFSTATES "PATENT. OFFICE f nnwann n. BARRETT,.OF DETROIT, inronrenn, AssrGnonTo woon HYDRAULIC HOIST a BODY COMPANY, or DETROIT, MICHIGAN, A CORPORATION'OF MICHIGAN THREE-WAY DUMPING BODY ooitsrrnucmiron Application filed November 5,1929; Serial No..4 o4,896.

This invention relates to a truck body construction particularly for the purpose of three-way dumping the contents of the body, that is, either to the rear of the truck or to either side thereof. a s

The bodies which'a-re carried on trucks are sub ected to very severe usageand must be j exceptionally strong and durable. In the three-way dumping body, a rear tail gate is used pivot-ally suspended to turn upon a horizontal axis. at the upper edge of the tail gate, while thesides of the body are piv otally mounted to turn about horizontal axes located at their lower edges, and the usual reinforcement whichthere is in a body having integral bottom, sides and front, or if not integral, permanently and rigidly secured together, is absent in bodies'of the three-way dumping type. It is anobject'andpurposeof 2 the present invention to provide'a novel construction of'b'ody particularly adapted for and capable of withstanding the very severe usage to which it is subjected in service and to make the same exceptionally strong and;

durable and yet not excessively heavy.

An understanding of the invention for the attainment of the ends stated, aswell as many others not at this time specifically enumerated, may be had from thefollowing description taken in connection with. the'accompanying drawings, in which, n

Fig. 1 is a sideelevation of the body, certain parts being shown in section for a better disclosure of structure.

2 is a partial rear elevation and trans verse vertical section through the body.

Fig.3 is a fragmentaryperspective view illustrating the frameconstruction; of the body at each cornerv thereof. U

Fig. 4 is a plan view of the'under frame work of the body, the bottom and sides'being removed and certain vertical posts shownin horizontalsection, and y Y I Fig. 5 is a fragmentary perspectiveview showing the essential elements of thebottom supporting frame work in separated relation, theviewbeing takenof those parts of the frame workat one cornerthereof. v j

Like reference characters 'refer to like parts in the diflerent figures of the drawings.

In the construction a lower supporting frame'is provided including two spaced apart longitudinal channels having vertical webs 1 and upper and lower flanges 2 and 3. The channel members adjacent each end are nargrowed in width so that the lower flange lat each end has an upward inclination; Substantially at the bend between .the lower flange parts 3 and 4, a section of the lower flange is cut away leaving the opening 6 and a vertical slot 7 is cut in the web 1 at one'side of the opening or recess 6 as shown in Fig.,

I 5. At each end of each channel member the flanges 2and 4= thereof are cutaway so as to leavea projecting tongue 5 at each end of the web1.-

i I Two cross channels hr sills also of'ohannel form are used. 'Each comprises avertical the lower-flange10 are inclined upwardly as indicated at ll. 'Theupper flange 9 substantially adjacent the bend in the lower flangeof the channel member is cut away as indicated at 12, and. a vertical slot 13- is cut downwardly in the web 8. r

This construction described permits an interfitting of the two longitudinal channels and the two cross channels with each other,

the same joining. together as indicated in Fig. 3, the web portions 1 ofthe'longitudinal channels being receivedin the slots 13, while the web portions .8 of thecross channels enter recesses at12, and the lower flanges 10 of the cross channels fitting in the openings or re- =cesses 6; and when thus fitted together th parts may be securely welded making a strong and rigid structure.

' At both the front andrear ends o'f the each end being slightly cutaway as indicated at 17. These end-channels may be applied against theends of the longitudinal channel the slot 7 the upper flanges2 of the longi I Itudinal channels fitting-in the openings or frame members, the tongues 5 entering between the upper and lower flanges 15 and 16 and a secure welding connection of the parts provided.

The bottom frame is completed by two longitudinal side members of angle format-1011 having vertical legs 18 and outwardly extending horizontal legs 19. The horizontal leg of each at each end is cut away and also a small portion of the vertical leg 18 at both the upper and lower edges, providinga projecting tongue 20 which likewise is adapted to enter between the upper and lower flanges 15 and 16 of the end cross channels and be welded thereto; while the ends of the first mentioned cross members abut against the sides of the legs 18 and are securely welded thereto.

V The bottom frame thus made at each corner is provided with an L-shaped member including vertical posts 21 from which a horizontal a-rm22 extends. The vertical posts pass along the outer sides of and adjacent the ends of the webs 14 of the end channels to which they are securely welded. Thehorizontal arms 22 extend under the lower flanges 16 and said arms at their inner ends are pro vided with integral brackets 23 which lie against the vertical legs 18 and are bolted thereto, as best shown in Fig. 3.

The ends of the end cross channels extend a short distance beyond the angle longitudinal members of the frame and a member'24r fits into the projecting end portions of said end cross channels and is permanently secured thereto by welding, forming a support for a horizontal trunnion 25 extending therefrom. There. are two trunnions 25 at each side of the frame structure which are in axial alinement. Between the trunnions at eachside. as described, a metal tube 26 is disposed, the two trunnions being inserted into the ends of the tube. A plurality of vertical posts 27 are secured at the ends and inter- I mediate the ends of the tubes 26 to which the sides 28 of the body are permanently connected. This provides a construction wherein the sides may be turned about the axes of the trunnions 25. at each side of the body.

A bottom 29 of sheet metal is located above the various upper flanges 2, 9, 15 and 19 of the under'supporting frame and is permanently attached thereto. A vertical front 3) is disposed between the front vertical posts The usual pivotally suspended tail gate 31 is carried by and between the upper ends of the rear vertical posts 21 and may be latched in position with the old and wellknown type of latch indicated at 32.

The construction described provides a very strong, rigid and durable construction in the 1 matter of three-Way dumping bodies and one which, in order to secure the necessary strength, rigidity and durability which it must have to withstand the service it undergoes, it is not necessary to use exceptionally heavy and cumbersome frame members but the frame structure is relatively light in weight and at the same time amply strong, rigid and durable. The construction is one readily and easily manufactured and it has proved particularly satisfactory in service. The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope. I

.I claim:

1. In an underframe structure having longitudinal beams and transverse beams the combination with side frame members of angle iron form located one at each side of said frame and at the ends of the transverse beams, transverse channel members located at the ends of and welded to said longitudinal beams, said side frame members being welded at'their ends to said transverse channel members, and said channel members having end portions projecting beyond said side members of the frame, and a bracket member secured at each corner of the frame comprising a vertical post and a horizontal arm extending from said vertical post at its lower end, the vertical posts having a welded connection to the adjacent end portions of the said transverse channel members, and means connecting said horizontal arms to the adjacent side members of the frame.

2. In a construction of the class described, a frame, a vertical post at each corner of the frame and extending upwardly therefrom, horizontal trunnions located at each corner of the frame, two. of said trunnions being located in horizontal alignment at each side of the frame, an elongated metal tube mounted at each side of the frame on said trunnions,

and vertical sides of sheet metal secured to said tubes.

3. In a construction of the class described, a horizontal frame including end transverse beams and side longitudinal members connected together at the corners of the frame, the end transverse beams having end portions projecting outwardly beyond said side longitudinal members, a horizontal trunnion mounted on and secured to the projecting end portions of each end transverse beam, the trunnions at each side of the frame lying in longitudinal alignment, vertical corner posts secured to the frame, and sides pivotally monuted on and located between the trunnions at each side of the construction adapted to be turned to vertical position and located between he vertical posts at each side of the frame when in vertical position.

4;. A construction comprising two intermediate longitudinal beams of channel form spaced from each other and two intermediate transverse beams of channel form spaced from each other, said longitudinal beams at their under sides and at a distance from each end thereof and said transverse beams at their upper sides and at'a distance from each end thereof having parts cut away whereby the longitudinal and transverse beams may beinterlocked togetherwith their upper and lower flanges in the sameplanes, said beams being welded together, transverse beams of channel form located at the ends of the lon-' gitudinal beams, said ends of the longitudinal beams having portions of their flanges cut away to provide projecting tongues received in the channels of said end transverse beams and welded thereto, side longitudinal mem-"q bers of angle form having horizontal flanges located in the same plane with the upper flanges of said longitudinal and transverse beamasaid side members having parts cut away at their ends to form projecting tongues received in the channels of'the end transverse beams and welded thereto, substantially as and for the purposes described.

5. A construction containing the elements in combination defined in claim 4, combined j with vertical corner posts located one at each corner of the frame and having a'permanent I e connection to the end portions of said end transverse beams, horizontal arms extending inwardly from the lower ends of'said posts and means connecting said horizontal arms to the downwardly extending flangesof the 7 side longitudinal members of said frame.

ture. e

EDWARD R. BARRETT.

In testimony whereof I aflix my sign'ai 

